AT90CAN32-16MU Atmel, AT90CAN32-16MU Datasheet - Page 236
![IC MCU AVR 32K FLASH 64-QFN](/photos/12/13/121326/313-64-qfn_sml.jpg)
AT90CAN32-16MU
Manufacturer Part Number
AT90CAN32-16MU
Description
IC MCU AVR 32K FLASH 64-QFN
Manufacturer
Atmel
Series
AVR® 90CANr
Specifications of AT90CAN32-16MU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
CAN, EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
53
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-VQFN Exposed Pad, 64-HVQFN, 64-SQFN, 64-DHVQFN
Processor Series
AT90CANx
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
2 KB
Interface Type
2-Wire, SPI, USART
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
53
Number Of Timers
2
Operating Supply Voltage
0.5 V to 0.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATDVK90CAN1, ATADAPCAN01
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Cpu Family
90C
Device Core
AVR
Device Core Size
8b
Frequency (max)
16MHz
Total Internal Ram Size
2KB
# I/os (max)
53
Number Of Timers - General Purpose
4
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
2.7V
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
64
Package Type
QFN EP
Package
64QFN EP
Family Name
90C
Maximum Speed
16 MHz
For Use With
ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATDVK90CAN1 - KIT DEV FOR AT90CAN128 MCU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT90CAN32-16MU
Manufacturer:
ATMEL
Quantity:
717
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19.2.2.2
Figure 19-2. CAN Extended Frames
19.2.2.3
19.2.3
19.2.3.1
236
Interframe
Interframe
Bus Idle
Bus Idle
Data Frame
Remote Frame
Space
Space
AT90CAN32/64/128
CAN Bit Timing
SOF
SOF
SOF
SOF
CAN Extended Frame
Format Co-existence
Bit Construction
11-bit base identifier
11-bit base identifier
IDT28..18
IDT28..18
A message in the CAN extended frame format is likely the same as a message in CAN standard
frame format. The difference is the length of the identifier used. The identifier is made up of the
existing 11-bit identifier (base identifier) and an 18-bit extension (identifier extension). The dis-
tinction between CAN standard frame format and CAN extended frame format is made by using
the IDE bit which is transmitted as dominant in case of a frame in CAN standard frame format,
and transmitted as recessive in the other case.
As the two formats have to co-exist on one bus, it is laid down which message has higher priority
on the bus in the case of bus access collision with different formats and the same identifier /
base identifier: The message in CAN standard frame format always has priority over the mes-
sage in extended format.
There are three different types of CAN modules available:
To ensure correct sampling up to the last bit, a CAN node needs to re-synchronize throughout
the entire frame. This is done at the beginning of each message with the falling edge SOF and
on each recessive to dominant edge.
One CAN bit time is specified as four non-overlapping time segments. Each segment is con-
structed from an integer multiple of the Time Quantum. The Time Quantum or TQ is the smallest
discrete timing resolution used by a CAN node.
SRR IDE
SRR IDE
Arbitration
Arbitration
– 2.0A - Considers 29 bit ID as an error
– 2.0B Passive - Ignores 29 bit ID messages
– 2.0B Active - Handles both 11 and 29 bit ID Messages
Field
Field
18-bit identifier extension
18-bit identifier extension
ID17..0
ID17..0
RTR
RTR
r1
r1
r0
r0
Control
Control
Field
Field
4-bit DLC
4-bit DLC
DLC4..0
DLC4..0
15-bit CRC
CRC
Field
0 - 8 bytes
Data
Field
CRC
del.
ACK
Field
ACK
ACK
del.
15-bit CRC
End of
Frame
7 bits
CRC
Field
CRC
Intermission
del.
3 bits
ACK
Field
ACK
Interframe
ACK
Space
del.
(Indefinite)
Bus Idle
End of
Frame
7 bits
7679H–CAN–08/08
Intermission
3 bits
Interframe
Space
(Indefinite)
Bus Idle
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